WyldFya;896632; said:Detectable levels of nitrite and ammonia are commonly seen. I have worked at several aquarium shops ranging from small private to corporate. I have worked with 1000s of customer tanks, hundreds of friends tanks, and all of my tanks. With the standard filtration provided from most fish stores, it is not enough filtration. .25 or less is often seen, and is only a sign that the filtration media can't keep up. In tanks with proper filtration, that is where you need to worry when ammonia and nitrite start to show up. But it is by no mean uncommon.
it looks like both of us have a lot of experience in the hobby both at home and at work, but we have seen different things out there.
we agree to disagree
personally, I know customers love to overfeed their tanks when we are not there servicing them, so this might be part of why you are seeing so much nitrite out there. Too much food (esp rotting) places a lot of extra load on the biofilter and might explain why normal filtration and tank maintenance are not keeping up with the nitrite produced in the tank.
In all my years, I rarely saw readable nitrite in established, stable tanks. You did.
you learn something new every day!